Getting into the crypto currency

So I came to cryptocurrencies pretty ignorant. Made an account on coinbase and bought the limit of my bank deposit ($7500) worth of Bitcoin. I bought the next week the same. It was around $10,000 per bitcoin. Since then it got up to 20k and as of today its fallen to 17k.

But I have also been buying other cryptocurrencies and will be reviewing them as I discover more.